KIEV, March 16 – President Petro Poroshenko has signed a decree implementing the March 15 decision by Ukraine's National Defense and Security Council (NDSC) to temporarily halt cargo shipments across the line of demarcation between Ukrainian troops and combined Russian-separatist militant groups in Donetsk and Luhansk regions.

"To implement the NSDC decision taking on March 15, titled 'On urgent additional measures to counteract hybrid threats to Ukraine's national security,'" the decree says.